Stump-extractor



(No Model.) 2 Sheets-Sheet 1.

L. SWE NSON. STUMP EXTRAGTOR.

No. 635,426. Patented Mar. 12, 1-895.

NVENTOR,

TTORN (No Model.) 2 Sheets-Sheet 2.

L. SWBNSON. STUMP EXTRAGTOR. No. 535,426. Patented Man 12, 1895 E m W IVza z'fnessesl LORENS SWENSON,

PATENT OFFICE.

OF CRESCO, IOWA.

STU M P-EXTRACTO R.

SPECIFICATION forming part of Letters Patent No. 535,426, dated March12, 1895.

Application filed January 7 1 89 5.

in the county of Howard and State of Iowa,

have invented certain new and useful Improvements in Stump-Extractors;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to improvements in stump extractors, and amongother things, it has for its object, to improve such devices byproviding an eflicient and inexpensive means for maintaining theextracting or pulling rope in such a condition around the drum as toprevent any binding action or undue strain and consequent friction, bythe crossing of the rope during its winding and unwinding, which socommonly occurs with machines at present in use, and to cause the ropeto wind and unwind in a single thickness and a uniform manner.

A further object of the invention is to afford a quick and convenientlyoperated means for taking up any slack in the rope without the aid ofthe draft animal.

A further object is to produce a machine of a compact and durableconstruction, at a comparitively small expense, and to adapt the same tobe readily shifted from one stump to another.

Other objects and advantages will appear from the following descriptionand claims when taken in connection with the annexed drawings, in which-Figure 1, is a side elevation of my improved machine. Fig. 2, is asimilar view taken at right angles to Fig. 1. Fig. 3, is a plan viewwith parts broken. Fig. 4, is a perspective view of a part of the lowercasting and friction on tube or roller, with its adjustable connection.Fig. 5, is a vertical, sectional view taken on the plane indicated bythe dotted line y, g, on Fig. 3. Fig. 6, is a horizontal, sectional viewtaken on the plane indicated by the dotted line as, w, on Fig. 1. Fig.7, is a plan view of the upper casting or plate, and Fig. 8, is asimilar view of the lower casting with the bearings for the frictionrollers in position,

Referring by letter to said drawings:O, indicates a horizontal timber,and D, indicates Serial No. 534,116. (No model.)

a timber which is arranged approximately horizontal, and extendslaterally from or about the center of the timber G.

F, indicates the upper casting. This castby means of vertical rods b,and V, as shown. The casting F, is braced to the sill timbers by braces,a, as better shown in Figs. 1, and 5, of the drawings.

f, indicates braces which tie the outer end secure the parts together,and the construction thus far described constitutes the main frame forsupporting the various mechanical parts of my machine.

The casting F, as better shown in Fig. 7, of the drawings, has asufficient number of arms, which are provided with holes to receive theupper ends of the rods b, and also the upper journal ends of thefriction rollers, as will be presently described, and this upper castingis also provided with a central aperture Z, for a purpose which willpresently appear.

U, indicates a vertically-disposed shaft or rod. This shaft is suitablysecured in the main frame and extends for a suffiicient altitude abovethe drum or spool A, which is arranged loosely thereon. The drum isprovided with a head m, fixed thereto and this head has a round neck n,which passes through the aperture Z, of the upper casting, and on theupper end of this neck is fixed or formed thereon the lower section 19,of a clutch I.

B, indicates the sweep. This sweep is connected with ahorizontally-disposed casting T, by means of a bracket, as shown, andthe under side of this casting has either formed thereon or fixedthereto, the upper section j, of the clutch I. This casting T, is alsoprovided with a vertically-disposed guide tube,

U, and carries with it the upper section of the clutch.

H, indicates a hand lever. This hand lever is pivotally connected withthe casting T, and consequently the upper section of the clutch, bymeans of links Q, and the hand lever which is journaled in the upperends of said links, has a cam or eccentric G, which is designed tocontact with the upper end of the shaft U, so that it may be manipulatedin raising and lowering the upper section of which is slidable upon theupright rod or shaft ing is supported upon the timbers O, and D,

of the timber E, to the timber C, so as to firmly the clutch, so as toallow the same to engage and disengage with the lower section, for apurpose which will be hereinafter more fully explained.

From the construction described, it will be seen that after the clutchhas been disengaged by raising the upper section from the lower one, thedrum may be turned without moving the sweep and in order to render theturning of the drum convenient, I have provided capstan arms h, on thelower section of the clutch for the grasp of the operator, and the armsmay be of an angular form, as shown. When it is desired to turn the drumby hand such as to adjust the rope or take up slack, it is simplynecessary to first throw down the hand lever H, when the eccentricthereon coming in contact with the upper endof the shaft U, will liftthe upper section of the clutch, as better shown in Fig. 5, of thedrawings, when the drum will be free to turn.

E indicates a metallic brace. This brace is secured at one end to thecasting F, and thence passing obliquely down ward is secured to theouter end of the timber D, over which it passes lengthwise. The oppositeend of this brace extends across the timber G, and is provid ed with aneye or loop P for the attachment of a chain, rope or the like, as bettershown in Fig. 3, of the drawings, and by which it may, when desired, besecured to any object to stay the machine in position. This brace E,where it bonds or loops adjacent to the timber D, will form a convenientmeans for attaching a chain 0, by which the machine may be also securedto a suitable object, and this brace may be also used for the attachmentof a draft animal in moving from place to place.

L, indicates a slidable collar, which is placed upon the drum A, anddesigned to move vertically thereon. This collar is provided withvertically-disposed eyes, which may be provided with tubular projectionsd, and they receive the rods 17, which serve to guide them andconsequently the collarin its up and down movements on the drum. Thiscollar is provided with diametrically arranged lug journals r, whichtake through journal apertures in a lever 6. This lever 6, comprises twosimilar branches of angular form, having the apertures at one end toreceive thelug journals of the collar, and their opposite ends areconnected by a weight N, which is preferably provided at opposite endswith foot pieces .9. The levers are supported at or about their anglesin links 9, which are pivoted to the bracesf, as a convenient means, andthe weight of the levers is designed to exert a sufficient pressurethereon to keep the slidable collar of the drum raised, but should theweight be insufficient the operator by placing his foot upon the pieces3, may bring his weight to bear thereon.

W, indicates the rope or cable.- This rope is attached to the drum atone end, at or near the upper end thereof, and is designed to winddownwardly around the drum. The slidable collar is designed to rest therope as shown, as it is being wound and while wound, and it will be seenthat by reason of the weight N, or such pressure as the operator mayexert upon the levers e, the collar will be held up on the drum, and asthe weight of the rope increases, according to the amount used, thecollar will gradually descend.

0, indicates friction rollers. These rollers are arranged at suitablepoints around the drum, and the distance which they are placed from thecircumference of the drum is equal or approximately so to the thicknessof the rope or cable employed. These rollers are designed to exert ayielding pressure upon the rope so as to keep the same from crossing,and will hold it in a uniform manner, one layer above another. The uppercasting 1 receives the upper ends of these friction rollers in itsperforated branches, and there are preferably three of the rollersemployed. The lower ends of the rollers are stepped in laterallyadjustable bearings supported in the lower casting .I. This lowercasting upon which the drum is placed, is provided with branches havingslots as shown, and there is one arm for each friction roller bearing.One wall of these slots u, is provided with a hole or aperture 1;, andthe longitudinal walls of the slot are beveled on the upper and lowersides to receive the recessed portions to, in the opposite sides of anut R. The bearings for the lower ends of the friction rollers, whichare preferably hollow, comprise a recessed seat K, and an integral stemQ, which takes through the hole or aperture '1), and the stem isthreaded to receive the nut to.

S, indicates a spiral spring, which surrounds the stem Q, and isinterposed between the apertured walls of the slotted branch of thecasting J, and the nut on said stern. By this construction it will beseen that the bearings K, will be allowed to move laterally and will beheld inwardly under spring pressure so that should the rope becomelapped or crossed on the drum, the rollers will give and thereby preventdamage or injury to the parts. This construction will also permit ofropes of different sizes being used.

The sweep B, which is connected to the upper section of the clutch bymeans of the bracket, is also connected to the outer end of the castingT, by a brace as shown, and a small sweep or arm 2', is attached to thesweep B, at its inner end, for the attachment of the drivin g line.

While I have described very minutely and in detail, the various parts ofmy device, and their combinations, yet I do not wish to be understood asconfining myself to such exact construction, as I am aware that many ofthe parts will permit of modifications. The weighted lever, forinstance, can be changed in configuration, and the friction rollers maybe differently supported so as to be rendered laterally adjustable.

ICC

Having described my invention, what I claim is 1. In a stump puller, thecombination with a drum having a rope or cable attached at one endthereto, a slidable collar arranged on the drum and adapted to supportthe rope and a friction roller or rollers arranged with respect to thedrum so as to prevent the rope from crossing during its winding on thedrum and ofi of the same, substantially as specified.

2. In a stump puller, the combination, with a drum, having a ropeattached at one end thereto, and a collar slidable on the drum andadapted to support the rope, substantially as specified.

3. In a stump puller, the combination with a rotatable drum, having arope attached at one end thereto, a collar slidable on the drum andadapted to support the rope, and a weighted lever for sustaining thecollar adj ustably, substantially as specified.

4. In a stump puller, the combination with a drum, having a ropeattached at one end thereto; of a slidable collar arranged on the drumand adapted to support the rope, and a laterally adjustable frictionroller or rollers exterior to the drum and rope as it is wound thereon,substantially as specified.

5. In a stump puller, the combination, with a suitable frame; of avertically-disposed shaft arranged thereon, a clutch, a drum on theshaft, and having one section of the clutch, a sweep secured to theother section of the clutch, arms or links rising from the upper sectionof the clutch, an eccentric or cam lever journaled in said arms orlinks, and adapted to engage the upper end of the vertical shaft so asto disengage the clutch and allow the drum to be rotated independentlyof the sweep, substantially as specified.

6. In a stump puller, the combination with a rotatable drum, of theslidable collar arranged thereon, and having the diametricallyarrangedlug journals, the angular levers journaled on said lugs at one end, theweight connecting the opposite ends, and the connections g, forfulcruming said levers at an intermediate point in their length,substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

LORENS SWENSON.

Witnesses:

E. J. THOMAS, S. S. CULVER.

